There is no one solution that fits all for SEO. It is an Art and Science combined. If you do SEO the right way, the rewards are long lived and worth more than just for search engine rankings but for potential customers to learn and understand your products and services better. There is no one combination of SEO strategy that will work on multiple websites because there are over 200 ranking factors to optimize for. Best practice SEO is about ensuring your website has followed guidelines and taken measures to make it easy for search engines to discover and understand your content.
Some important SEO considerations are those such as: A website developed and coded with SEO in mind from the get-go has higher chances of ranking well in search engines. And content marketing does in fact has a strong impact on how your website is perceived by Google and other search engines.